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General Selection display. A Problem Analysis guide is provided to explain
step-by-step use of Problem Analysis procedures. A subset of Problem Analysis
routines can be executed on a remote 4381 Processor using the Remote Operator
Console Facility.
The intent of Problem Analysis is to:
•
Provide automated processor problem determination procedures
•
Capture the state of the processor at the time of the error
•
Identify recovery procedures
•
Verify processor hardware integrity
•
Identify the parts required
•
Collect and transmit error data needed for remote analysis
•
Improve customer availability
To obtain the maximum benefit from Problem Analysis and the remote
maintenance approach, the Remote Support Facility must be specified and
functional.
Problem Analysis Option 1 is the normal starting point for Problem Analysis. This
option collects status information about the processor and records it on functional
diskette 1. The processor error logs are then analyzed to determine if any failures
have occurred in the previous 24 hours. If an operator correctable problem is
.._,,,
detected, a screen is displayed that explains the problem, lists the probable causes,
and gives steps to correct the problem. If a hardware problem is detected, a screen
is displayed that directs the operator to run the Processing Unit Analysis (option
3). If no trouble is detected, a NO TROUBLE FOUND message is displayed.
Option 2 allows the redisplay of all of the messages (screens) that were displayed
by Options 1 and 3 for the last six times Problem Analysis was run. This allows a
system programmer or service representative to see exactly what Problem Analysis
displayed to the operator.
Option 3 selects Processing Unit Analysis. This consists of the execution of
processing unit diagnostics that reside on functional diskette 2. Since an IML and
IPL are required after running these tests, all processing should be terminated prior
to selecting this option. If a solid failure is detected, an error code is displayed.
The error code allows the customer engineer to bring the probable repair parts. If
an intermittent failure is detected, the operator is instructed to restart processor
operations and to call for service at his convenience. If no failures are detected, the
operator is instructed to restart processor operations.
Option 4 of Problem Analysis is used to send service information gathered by
Problem Analysis Options 1 and 3 to a remote specialist for further analysis. This
information is sent via the Remote Support Facility. Execution of this option is
requested by the remote specialist, if necessary, and can operate concurrently with
normal processor operation after it is initiated (the operator console cannot be used
for operator-to-operating system communication during the initialization time).
Option 4 can be used, for example, to aid in fault diagnosis for intermittent errors.
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A Guide to the IBM 4381 Processor
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